Category is determined by the speed you choose to fly the visual portion of the given approach at the given time. If a no-flap landing raises your approach speed over 140 kias, then you are to use cat d mins while shooting the approach without the use of flaps.
Sorry man, but the category is choosen by the weigh of aircraft first of all and other parameters...
It's not a game, where you can chose which Cat. Aircraft you are...and which model or series of aircraft will be.
